Comparison of a New Modified Gummel-Poon Model and VBIC for AlGaAs/GaAs HBTs (original) (raw)

A new modified Gummel-Poon (MGP) based model has been developed and tested on heterojunction bipolar transistors (HBTs). This paper focuses on the comparison of the new MGP and the VBIC models under DC and small-signal operations. The DC parameters of the two models are extracted from Gummel forward and reverse measurements at various junction temperatures and Ic-Vce measurements. The small-signal intrinsic elements are extracted from multi-bias sparameter measurements. DC comparisons between the two model predictions and measurements reveal that the new MGP model surpasses the VBIC DC performances. The sparameter comparisons of simulated and measurements at various bias points, from 1Ghz to 30Ghz, show that the two models are equivalent.